Patrick Guerrand-Hermès (born 25 September 1932) is a Moroccan sports entrepreneur and billionaire. He is noted for his involvement with Morocco and redevelopment there, most notably the redevelopment of the Aïn Kassimou in Marrakesh in the 1980s, a villa built for Leo Tolstoy's daughter, .He is also an art collector, and in 2001 Forbes ranked him as the 387th richest man in the world, with an estimated net worth of $1.3 billion.